yare

This page lists questions and answers that were posted by visitors named yare.

Questions

The following questions were asked by visitors named yare.

Answers

The following answers were posted by visitors named yare.

a) 1-((e^z)*(ln(3/2))) b) 1

a) No, it is not a valid PDF, but there is a constant c making cf1 a valid PDF. b) No, it is not a valid PDF, and there is no constant c making cf2 a valid PDF.

Cov(X,Y)= -2 E[X∣Y=y]= -2/5*y Var(X∣Y=y)= 1/5

𝖤𝑈=𝖤𝑈1{𝑋≤𝑌}+𝖤𝑈1{𝑋>𝑌}=∫10∫1𝑥𝑥𝑑𝑦𝑑𝑥+∫10∫𝑥0𝑦𝑑𝑦𝑑𝑥=13. EV= 1-EU = 1/3 COV(U,V) = E(UV) - EUEV=1/36